John bichaeds



UNITED lSTATES PATENT OFFICE.

JOHN RICHARDS, OF SAN FRANCISCO, CALIFORNIA.

CENTRIFUGAL PUMP.

SPECIFICATION forming part of Letters Patent No. 359,097, dated March 8,1887.

Application filed April 27, 1886. Serial No4 200,390. (No model.)

To @ZZ whom it may concern,.-

Be itknown that l, JOHN Rioni-inns, residing at San Francisco, in thecounty of San Francisco and State of California, a citizen of theUnitedStates, have invented or discovered a certain new and useful Improvementin Centrifugal Pumps, of which improvement the following is aspecification.

In the accompanyingdrawings, which make part of this specification,Figure 1 is an end View, partly in elevation and partly in section, of acentrifugal pump embodying my invention; and Fig. 2, a side View, inelevation, of the same.

The object of my invention is to simplify and economize the constructionof centrifugal pumping apparatus of the class in which the wheel orrunner rotates upon a horizontal shaft by enabling the main casing andspindle-bearings to be supported without the employment of a special orindependent frame, as well as to provide for locating thedischarge-nozzle of the pump in any desired position relatively to theaxial plane of the spindle.

To this end my invention, generally stated, consists in the combinationof a pair of suction-pipes,each having an upperspindle-bearing and alower lateral supporting-flange, and a main casing interposed betweenand connected to the adjacent faces of the suctionpipes.

The improvement claimed is hereinafter fully set forth, i

In the practice of my invention I provide a main casing, 1, having aperipheral volute discharge-passage, 2, terminating in a angeddischarge-nozzle, 3, for the connection of the discharge or deliverypipe 4. A central opening is formed in each side of the casing, saidopenings being faced off truly to abut against iianges 5 on the upperends of twolateral suction-pipes, 6, to which the interposed main casingis secured by bolts 8. A bearing, 9, is formed in the upper portion ofeach of the suction-pipes 6 to support the journals of the shaft orspindle 10, upon which the wheel or runner 11 of the pump is iixed, saidshaft projecting outwardly through properly-packed 5o stuffing-boxes l2at the ends of the bearings and carrying pulleys 13, through which theshaft and runner are rotated by power transmitted from a suitable primemover. The suction-pipes 6 are turned into vertical position below thebearings 9, 4and at their lower ends are provided with substantiallateral iianges 14, which serve as bed-plates to support the entireweight of the pump upon a suitable foundation, 15, to which they areconnected by holding-down bolts 16. Vertical webs 17, extending from theflanges let to the bearings 9, serve to impart additional strength andrigidity to the latter. Openings 1S,closed by removable lids or bonnets19, are formed in the upper portions of the suction-pipes to enableaccess to be had to the interior of the pump for the removal ofobstructions when desired. Additional sections 20, connected to thelower ends of the suction-pipes,extend to such 4depth below the same asmay be required by the level of the liquid to be raised by the pump.

It will be seen that by the above construction the weight of the entirestructure is transmitted through the suction-pipes directly t0 thefoundation, and the special supportingframes heretofore, required arewholly dis` pensed with, thus providing a correspondingly simpler andmore compact apparatus. A further advantage is attained in the capacityof turning the ina-in casing between the connecting-flanges of thesuction-pipes, so that the discharge-nozzle can be set eitherhorizontally, vertically, or at any desired angle considered necessaryor desirable.

I claim herein as my invention- In a centrifugal pump, the combinationof a frame composed of a pair of suction-pipes, each having an upperspindle-bearing, a flange extending laterally from its lower end inposition to serve as a bed-plate or support, and a flange on its lowerend for the direct c011- nection of an independent additional section,and a main or ruimer casing interposed between and bolted to the upperends of the suction-pipes independently of the foundation to which thesame are secured, substantially as set forth.

In testimony whereof I have hereunto set my hand.

JOHN RICHARDS.

Vitnesses:

J. SNOWDEN BELL, R. H. WHITTLESEY.

